Respuesta :

Solve for x:-

7 + x = 21
x = ?
Inverse operation
21 - 7 = x
21 - 7 = 14
x ⇒ 14

Check:-
7 + x = 21
x ⇒ 14
7 + 14 = 21
Yes, correct!

x ⇒ 14
The anawer should be 14 because 7+14=21

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